| 释义 |
mischmetal(l|ˈmɪʃmɛt(ə)l|
Also misch metal.
[ad. G. mischmetall, f. misch-en to mix + metall metal n.]
A mixture of lanthanons containing about 50 per cent cerium which is obtained usu. by electrolysis of the fused chlorides from monazite and is used in lighter flints.
1923B. S. Hopkins Chem. Rarer Elements x. 168 The most important of these [cerium alloys] is the alloy called misch metal, mixed metal, commercial cerium, or simply ‘cerium’. 1924J. W. Mellor Comprehensive Treat. Inorg. & Theoret. Chem. V. xxxviii. 608 A. Sieverts and G. M. Goldegg studied the action of hydrogen and nitrogen on the mischmetals. 1954H. E. Kremers in C. A. Hampel Rare Metals Handbk. xvi. 343 The most common ferrous alloy of the rare earths is the common lighter flint, which contains about 30 per cent iron, the balance being misch metal. 1966Phillips & Williams Inorg. Chem. II. xix. 18 A particularly interesting lanthanide alloy is ‘misch-metall’, with 50 per cent Ce, 25 per cent La, and the rest mostly Nd and Pr. This alloy is added to partly purified iron when it preferentially removes elements such as C, O, S, N, and P into the slag as lanthanide compounds. |